A plastic product detection device

By designing a plastic product testing device that uses a mechanical gripper to test plastic products on a conveyor belt, the problem of low testing efficiency under high temperature conditions has been solved, achieving accurate testing and improved efficiency.

CN224525319UActive Publication Date: 2026-07-21HUIZHOU KUIXIN WEIYE TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUIZHOU KUIXIN WEIYE TECH CO LTD
Filing Date
2025-07-01
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing plastic product testing devices are inefficient and prone to errors under high-temperature conditions, while manual testing is time-consuming and labor-intensive, increasing labor costs.

Method used

Design a plastic product testing device that uses a mechanical gripper to test plastic products on a conveyor belt via a gripper assembly, a defective box, a qualified box, and a sliding assembly. Qualified products are gripped into the qualified box, while defective products are transported into the defective box, achieving accurate testing.

Benefits of technology

It enables accurate testing of plastic products under high-temperature conditions, reducing quality risks and labor costs, and improving testing efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of plastic product detection devices, it includes first fixed rod, the top front side of first fixed rod is fixedly connected with first electric telescopic rod, the top bottom surface of first electric telescopic rod is fixedly connected with second electric telescopic rod, the output end bottom surface of second electric telescopic rod is fixedly connected with limit box, the lower end front side of first fixed rod is fixedly connected with desktop, the upper surface of desktop is fixedly connected with fixed plate in front and back two sides, the inner side surface of fixed plate is rotatably connected with sliding assembly. Through the above structure, by setting hand grab subassembly, unqualified box, qualified box, sliding assembly, when plastic product is sliding on conveyer belt, mechanical gripper sequentially grabs plastic product, when plastic product is qualified, mechanical gripper can be grabbed up, and is put into qualified box, when unqualified, mechanical gripper cannot grab to bad product, and is conveyed to unqualified box by conveyer belt, the tiny deformation of plastic product can be detected, and the quality risk in production is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of plastic products technology, and in particular to a plastic products testing device. Background Technology

[0002] Plastic products are items made of plastic materials, such as plastic bags, containers, and toys. Known for their lightweight, durability, and ease of cleaning, plastic products are widely used in daily life and industrial production. They play a vital role in various industries and are essential for packaging, storage, and transportation purposes.

[0003] During the production process, plastic products may deform under high temperatures, such as heat deformation. However, commercially available plastic product testing devices have some drawbacks, especially for detecting deformation at high temperatures. Currently, heat deformation inspection of plastic products is mainly carried out manually, but this method is not only time-consuming and labor-intensive with low efficiency, but also has a certain probability of human error, while significantly increasing labor costs. Utility Model Content

[0004] The purpose of this invention is to provide a plastic product testing device. By incorporating a gripper assembly, a defective box, a qualified box, and a sliding assembly, the mechanical gripper sequentially detects and picks up plastic products as they slide on a conveyor belt. Only qualified plastic products are picked up by the mechanical gripper and placed into the qualified box. If a plastic product is defective due to deformation caused by high temperatures during production, the mechanical gripper cannot pick up the defective product, and it is transported to the defective box by the conveyor belt. This device can accurately detect minute deformations of plastic products under high-temperature conditions, reducing quality risks in production and solving the problems mentioned in the background section.

[0005] To achieve the above objectives, a plastic product testing device is provided, comprising a first fixed rod, a first electrically operated telescopic rod fixedly connected to the front top of the first fixed rod, a second electrically operated telescopic rod fixedly connected to the bottom top of the first electrically operated telescopic rod, a limit box fixedly connected to the bottom output end of the second electrically operated telescopic rod, a tabletop fixedly connected to the front lower end of the first fixed rod, and fixed plates fixedly connected to the front and rear sides of the upper surface of the tabletop. A sliding assembly is rotatably connected to the inner surface of the fixed plates. The first fixed rod is designed to fix its bottom to the tabletop and its top to the first electrically operated telescopic rod. The first electrically operated telescopic rod allows for horizontal extension and retraction. Its top and bottom surfaces are fixed to the second electrically operated telescopic rod. The second electrically operated telescopic rod allows for horizontal extension and retraction while also being fixedly connected to the tabletop. The tabletop is used to fix its bottom surface to a gripping assembly. The gripping assembly is used for testing plastic products. The tabletop is used to fix the first fixed rod and the fixed plates. The fixed plates are used to fix the first long rod.

[0006] According to the aforementioned plastic product testing device, the gripper assembly includes a cylinder, a limiting block, a short rod, a support plate, a second fixing rod, a limiting plate, a first connecting block, a second connecting block, a clamping plate, and a rubber sheet. The limiting block is fixedly connected to the inner surface of the limiting box. The limiting block is used to fix the cylinder.

[0007] According to the aforementioned plastic product testing device, the cylinder is fixedly connected to the top of the limiting block, the short rod is fixedly connected to the output end of the cylinder, the support plate is fixedly connected to the bottom surface of the short rod, the second fixed rod is fixedly connected to the bottom surface of the support plate near the edge, the limiting plates are fixedly connected to the bottom surface of the limiting box near the edge, the first connecting block is fixedly connected to the bottom surface of the second fixed rod, the second connecting block is rotatably connected to the left and right sides of the first connecting block, the clamping plate is rotatably connected to the inner surfaces of the limiting plate and the second connecting block, and the rubber sheet is fixedly connected to the lower side surface of the clamping plate. The cylinder provides power, the short rod extends and retracts, the support plate is fixed to the second fixed rod, the second fixed rod fixes the first connecting block, the first connecting block pulls the second connecting block, the second connecting block rotates the clamping plate, and the rubber sheet increases friction and protects the plastic product during clamping.

[0008] According to the aforementioned plastic product testing device, the sliding assembly includes a driving wheel, a driven wheel, a first long rod, a second long rod, and a conveyor belt. The first long rod is rotatably connected to the inner surface of the fixed plate, and the second long rod is fixedly connected to the inner surface of the fixed plate.

[0009] According to the aforementioned plastic product testing device, the driving wheel is fixedly connected to the top end of the first long rod, the driven wheel is fixedly connected to the top end of the second long rod, and the conveyor belt is rotatably connected to the surfaces of the first and second long rods. The driving and driven wheels are provided for the conveyor belt to rotate on their surfaces, and the first and second long rods are provided for fixing the driving and driven wheels to the fixed plate.

[0010] According to the aforementioned plastic product testing device, the support plate is slidably connected to the internal cavity of the limiting box, and the second fixing rod is slidably connected to the bottom surface of the limiting box.

[0011] According to the aforementioned plastic product testing device, legs are fixedly connected to the four corners of the bottom surface of the tabletop, a non-conforming box is fixedly connected to the top of the tabletop, and a conforming box is fixedly connected to the left side of the tabletop. The legs are used to stabilize the tabletop, the non-conforming box is used to transport non-conforming plastic products along the conveyor belt, and the conforming box is used to transport the products to the conforming box when gripped by the mechanical gripper.

[0012] The beneficial effects of this utility model are as follows: By setting up a gripping component, a defective box, a qualified box, and a sliding component, the mechanical gripper sequentially detects and grabs the plastic products as they slide on the conveyor belt. Only when the plastic products are qualified can the mechanical gripper pick them up and put them into the qualified box. When the plastic products are defective due to deformation caused by high temperature during the production process, the mechanical gripper cannot pick up the defective products and they are transported to the defective box by the conveyor belt. This allows for accurate detection of minute deformations of plastic products under high temperature conditions, reducing quality risks in production.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a perspective view of a plastic product testing device according to the present invention;

[0016] Figure 2 This is an internal cross-sectional view of a plastic product testing device according to this utility model;

[0017] Figure 3 This is a diagram of the hand gripping component of a plastic product testing device according to this utility model;

[0018] Figure 4 This is a diagram of the sliding component of a plastic product testing device according to this utility model;

[0019] Legend:

[0020] 1. First fixed rod; 2. First electric telescopic rod; 3. Second electric telescopic rod; 4. Desktop; 5. Hand gripping assembly; 501. Cylinder; 502. Limiting block; 503. Short rod; 504. Support plate; 505. Second fixed rod; 506. Limiting plate; 507. First connecting block; 508. Second connecting block; 509. Clamping plate; 510. Rubber sheet; 6. Non-conforming box; 7. Fixed plate; 8. Conforming box; 9. Leg rod; 10. Sliding assembly; 1001. Drive wheel; 1002. Driven wheel; 1003. First long rod; 1004. Second long rod; 1005. Conveyor belt; 11. Limiting box. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Reference Figures 1 to 4This utility model discloses a plastic product testing device, which includes a first fixed rod 1, a first electric telescopic rod 2 fixedly connected to the front top of the first fixed rod 1, a second electric telescopic rod 3 fixedly connected to the bottom top of the first electric telescopic rod 2, a limit box 11 fixedly connected to the bottom output end of the second electric telescopic rod 3, a tabletop 4 fixedly connected to the front lower end of the first fixed rod 1, fixed plates 7 fixedly connected to the front and rear sides of the upper surface of the tabletop 4, a sliding assembly 10 rotatably connected to the inner surface of the fixed plates 7, leg rods 9 fixedly connected to the four corner edges of the bottom surface of the tabletop 4, a defective box 6 fixedly connected to the top of the tabletop 4, and a qualified box 8 fixedly connected to the left side of the tabletop 4. The first electric telescopic rod 2, the second electric telescopic rod 3, and the tabletop 4 can extend and retract in both horizontal and vertical directions. When the mechanical gripper grabs plastic products, the first electric telescopic rod 2 extends, allowing the mechanical gripper to reach above the qualified box 8. The tabletop 4 and the fixed plate 7 provide support for the sliding assembly 10, allowing the sliding assembly 10 to move between the two fixed plates 7. The first electric telescopic rod 2 and the second electric telescopic rod 3 each consist of a housing, a piston, a piston rod, and a spring, powered by a motor. The housing is a sealed container that can hold liquid. The piston is a cylinder with a sealing ring that can move inside the housing. The piston rod is connected to the piston, and force can be applied through the piston rod. When liquid is pumped into the housing, the pressure of the liquid causes the piston to move outward. Finally, the piston rod is retracted by the spring. The leg rod 9 and the tabletop 4 provide support and space for other parts of the tabletop 4.

[0023] The gripper assembly 5 includes a cylinder 501, a limiting block 502, a short rod 503, a support plate 504, a second fixing rod 505, a limiting plate 506, a first connecting block 507, a second connecting block 508, a clamping plate 509, and a rubber sheet 510. The limiting block 502 is fixedly connected to the inner surface of the limiting box 11.

[0024] Cylinder 501 is fixedly connected to the top of limit block 502, short rod 503 is fixedly connected to the output end of cylinder 501, support plate 504 is fixedly connected to the bottom surface of short rod 503, second fixed rod 505 is fixedly connected to the bottom surface of support plate 504 near the edge, limit plate 506 is fixedly connected to the bottom surface of limit box 11 near the edge, first connecting block 507 is fixedly connected to the bottom surface of second fixed rod 505, second connecting block 508 is rotatably connected to the left and right sides of first connecting block 507, clamping plate 509 is rotatably connected to the inner surface of limit plate 506 and second connecting block 508, rubber sheet 510 is fixedly connected to the lower side surface of clamping plate 509, support plate 504 is slidably connected to the internal cavity of limit box 11, and second fixed rod 505 is slidably connected to the bottom surface of limit box 11. The cylinder 501, the limiting block 502, and the limiting box 11 are for easy fixing of the cylinder 501. The cylinder 501, the short rod 503, the support plate 504, the second fixing rod 505, the limiting plate 506, the first connecting block 507, the second connecting block 508, and the clamping plate 509 are all included. When the cylinder 501 provides power, the short rod 503 can be extended and retracted to pull the support plate 504 up and down, thereby driving the second fixing rod 505 up and down, thus achieving the clamping of the clamping plate 509.

[0025] The sliding assembly 10 includes a driving wheel 1001, a driven wheel 1002, a first long rod 1003, a second long rod 1004, and a conveyor belt 1005. The first long rod 1003 is rotatably connected to the inner surface of the fixed plate 7, and the second long rod 1004 is fixedly connected to the inner surface of the fixed plate 7.

[0026] The drive wheel 1001 is fixedly connected to the top end of the first long rod 1003, and the driven wheel 1002 is fixedly connected to the top end of the second long rod 1004. The conveyor belt 1005 is rotatably connected to the surfaces of the first long rod 1003 and the second long rod 1004. A motor provides power to drive the drive wheel 1001 to rotate, and the driven wheel 1002 follows suit, thereby enabling the plastic products to be conveyed on the conveyor belt 1005.

[0027] Working principle: When the driving wheel 1001 drives the driven wheel 1002, the conveyor belt 1005 rotates accordingly. Plastic products move forward due to the rotation of the conveyor belt 1005. The mechanical gripper picks up the plastic products sequentially. Powered by the cylinder 501, the telescopic rod 503 pulls the support plate 504 up and down, thereby driving the second fixed rod 505 up and down. Since the limiting plate 506 is fixed to the bottom of the limiting box 11, and the first connecting block 507 is fixed to the bottom of the second fixed rod 505, the second fixed rod 505 pulls the second connecting block 508 as it moves up and down. This, in turn, drives the clamping plate 509, which is fixed with a rubber sheet 510. Based on the known dimensions of the plastic products, the size of the plastic products that the clamping plate 509 can clamp is preset, ultimately achieving the clamping of the plastic products. Only qualified plastic products can be clamped. The first electric telescopic rod 2 is extended to transport the plastic products to the qualified box 8. The mechanical gripper opens, and qualified plastic products are transported into the qualified box 8. Unqualified plastic products, due to deformation, may be too large or too small, and the mechanical gripper cannot clamp them. They are transported to the unqualified box 6 by the conveyor belt 1005.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A plastic product testing device, characterized in that, The device includes a first fixed rod (1), a first electric telescopic rod (2) is fixedly connected to the front top of the first fixed rod (1), a second electric telescopic rod (3) is fixedly connected to the bottom top of the first electric telescopic rod (2), a limit box (11) is fixedly connected to the bottom output end of the second electric telescopic rod (3), a tabletop (4) is fixedly connected to the front bottom of the lower end of the first fixed rod (1), a fixed plate (7) is fixedly connected to the front and rear sides of the upper surface of the tabletop (4), and a sliding assembly (10) is rotatably connected to the inner surface of the fixed plate (7).

2. The plastic product testing device according to claim 1, characterized in that, The gripper assembly (5) includes a cylinder (501), a limiting block (502), a short rod (503), a support plate (504), a second fixing rod (505), a limiting plate (506), a first connecting block (507), a second connecting block (508), a clamping plate (509), and a rubber sheet (510). The limiting block (502) is fixedly connected to the inner surface of the limiting box (11).

3. The plastic product testing device according to claim 2, characterized in that, The cylinder (501) is fixedly connected to the side surface of the limiting block (502), the short rod (503) is fixedly connected to the output end of the cylinder (501), the support plate (504) is fixedly connected to the bottom surface of the short rod (503), the second fixing rod (505) is fixedly connected to the bottom surface of the support plate (504) near the edge, the limiting plate (506) is fixedly connected to the bottom surface of the limiting box (11) near the edge, the first connecting block (507) is fixedly connected to the bottom surface of the second fixing rod (505), the second connecting block (508) is rotatably connected to the left and right sides of the first connecting block (507), the clamping plate (509) is rotatably connected to the inner surface of the limiting plate (506) and the second connecting block (508), and the rubber sheet (510) is fixedly connected to the lower side surface of the clamping plate (509).

4. The plastic product testing device according to claim 1, characterized in that, The sliding assembly (10) includes a drive wheel (1001), a driven wheel (1002), a first long rod (1003), a second long rod (1004), and a conveyor belt (1005). The first long rod (1003) is rotatably connected to the inner surface of the fixed plate (7), and the second long rod (1004) is fixedly connected to the inner surface of the fixed plate (7).

5. A plastic product testing device according to claim 4, characterized in that, The drive wheel (1001) is fixedly connected to the top end of the first long rod (1003), the driven wheel (1002) is fixedly connected to the top end of the second long rod (1004), and the conveyor belt (1005) is rotatably connected to the surfaces of the first long rod (1003) and the second long rod (1004).

6. A plastic product testing device according to claim 2, characterized in that, The support plate (504) is slidably connected to the cavity inside the limiting box (11), and the second fixing rod (505) is slidably connected to the bottom surface of the limiting box (11).

7. The plastic product testing device according to claim 1, characterized in that, Legs (9) are fixedly connected to the four corners of the bottom surface of the tabletop (4), a defective box (6) is fixedly connected to the top of the tabletop (4), and a qualified box (8) is fixedly connected to the left side of the tabletop (4).